Gallery: Another step toward harnessing memristors

Gallery: Another step toward harnessing memristors

Summary: Researchers say they have found out that memristors function like the neurons that pass information around the human brain

TOPICS: Hewlett-Packard

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  • Electrical charge flowing through a memristor changes the resistance state of the device, but actually observing the corresponding material changes has been a challenge. Highly focused x-rays were used to probe the memristor non-destructively and a ~100 nm region with concentrated oxygen vacancies (right, shown in blue) where the memristive switching occurs was discovered. Surrounding this region a newly developed structural phase (red) was also found, which acted like a thermometer telling researchers where and how hot it became.

    Caption credit: HP

  • HP's Stan Williams led the research team that cracked open memristors in 2008. ZDNet's Tom Foremski sat down with him and talked about his team's findings.

  • "One of the biggest hurdles in using these devices is understanding how they work: the microscopic picture for how they undergo such tremendous and reversible change in resistance. We now have a direct picture for the thermal profile that is highly localised around this channel during electrical operation, and is likely to play a large role in accelerating the physics driving the memristive behavior." - John Paul Strachan of the nanoElectronics Research Group at HP Labs.

Topic: Hewlett-Packard

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